GALNT2

Protein-coding gene in the species Homo sapiens
GALNT2
Available structures
PDBOrtholog search: PDBe RCSB
List of PDB id codes

2FFU, 2FFV, 4D0T, 4D0Z, 4D11, 5AJN, 5AJO, 5AJP, 5FV9

Identifiers
AliasesGALNT2, GalNAc-T2, polypeptide N-acetylgalactosaminyltransferase 2, CDG2T
External IDsOMIM: 602274; MGI: 894694; HomoloGene: 3297; GeneCards: GALNT2; OMA:GALNT2 - orthologs
Gene location (Human)
Chromosome 1 (human)
Chr.Chromosome 1 (human)[1]
Chromosome 1 (human)
Genomic location for GALNT2
Genomic location for GALNT2
Band1q42.13Start230,057,990 bp[1]
End230,282,122 bp[1]
Gene location (Mouse)
Chromosome 8 (mouse)
Chr.Chromosome 8 (mouse)[2]
Chromosome 8 (mouse)
Genomic location for GALNT2
Genomic location for GALNT2
Band8|8 E2Start124,958,130 bp[2]
End125,072,463 bp[2]
RNA expression pattern
Bgee
HumanMouse (ortholog)
Top expressed in
  • Descending thoracic aorta

  • ascending aorta

  • cartilage tissue

  • gastric mucosa

  • right coronary artery

  • stromal cell of endometrium

  • body of pancreas

  • palpebral conjunctiva

  • right lobe of liver

  • left coronary artery
Top expressed in
  • lens

  • yolk sac

  • pancreas

  • stomach

  • islet of Langerhans

  • proximal tubule

  • neural tube

  • mesencephalon

  • skeletal muscle tissue

  • right kidney
More reference expression data
BioGPS


More reference expression data
Gene ontology
Molecular function
  • transferase activity
  • manganese ion binding
  • glycosyltransferase activity
  • metal ion binding
  • protein binding
  • carbohydrate binding
  • polypeptide N-acetylgalactosaminyltransferase activity
Cellular component
  • integral component of membrane
  • integral component of Golgi membrane
  • Golgi apparatus
  • membrane
  • Golgi membrane
  • extracellular region
  • Golgi cisterna membrane
  • perinuclear region of cytoplasm
  • Golgi stack
  • extracellular exosome
  • endoplasmic reticulum membrane
Biological process
  • protein O-linked glycosylation via serine
  • protein glycosylation
  • protein O-linked glycosylation via threonine
  • O-glycan processing
  • protein O-linked glycosylation
Sources:Amigo / QuickGO
Orthologs
SpeciesHumanMouse
Entrez

2590

108148

Ensembl

ENSG00000143641

ENSMUSG00000089704

UniProt

Q10471

Q6PB93

RefSeq (mRNA)

NM_001291866
NM_004481

NM_139272

RefSeq (protein)

NP_001278795
NP_004472

NP_644678

Location (UCSC)Chr 1: 230.06 – 230.28 MbChr 8: 124.96 – 125.07 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Polypeptide N-acetylgalactosaminyltransferase 2 is an enzyme that in humans is encoded by the GALNT2 gene.[5][6][7]

This gene encodes polypeptide N-acetylgalactosaminyltransferase 2, a member of the GalNAc-transferases family. This family transfers an N-acetyl galactosamine to the hydroxyl group of a serine or threonine residue in the first step of O-linked oligosaccharide biosynthesis. The localization site of this particular enzyme is preponderantly the trans-Golgi.[8] Individual GalNAc-transferases have distinct activities, and initiation of O-glycosylation in a cell is regulated by a repertoire of GalNAc-transferases.[7]

References

  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000143641 – Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000089704 – Ensembl, May 2017
  3. ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. ^ Bennett EP, Weghuis DO, Merkx G, van Kessel AG, Eiberg H, Clausen H (Jul 1998). "Genomic organization and chromosomal localization of three members of the UDP-N-acetylgalactosamine: polypeptide N-acetylgalactosaminyltransferase family". Glycobiology. 8 (6): 547–55. doi:10.1093/glycob/8.6.547. PMID 9592121.
  6. ^ White T, Bennett EP, Takio K, Sorensen T, Bonding N, Clausen H (Dec 1995). "Purification and cDNA cloning of a human UDP-N-acetyl-alpha-D-galactosamine:polypeptide N-acetylgalactosaminyltransferase". J Biol Chem. 270 (41): 24156–65. doi:10.1074/jbc.270.41.24156. PMID 7592619.
  7. ^ a b "Entrez Gene: GALNT2 UDP-N-acetyl-alpha-D-galactosamine:polypeptide N-acetylgalactosaminyltransferase 2 (GalNAc-T2)".
  8. ^ Netherton CL, McCrossan MC, Denyer M, Ponnambalam S, Armstrong J, Takamatsu HH, Wileman TE (November 2006). "African Swine Fever Virus Causes Microtubule-Dependent Dispersal of trans-Golgi Network" (PDF). Journal of Virology. 80 (22): 11385–11392. doi:10.1128/JVI.00439-06. PMC 1642160. PMID 16956944.

Further reading

  • Bennett EP, Hassan H, Clausen H (1996). "cDNA cloning and expression of a novel human UDP-N-acetyl-alpha-D-galactosamine. Polypeptide N-acetylgalactosaminyltransferase, GalNAc-t3". J. Biol. Chem. 271 (29): 17006–12. doi:10.1074/jbc.271.29.17006. PMID 8663203.
  • Wandall HH, Hassan H, Mirgorodskaya E, et al. (1997). "Substrate specificities of three members of the human UDP-N-acetyl-alpha-D-galactosamine:Polypeptide N-acetylgalactosaminyltransferase family, GalNAc-T1, -T2, and -T3". J. Biol. Chem. 272 (38): 23503–14. doi:10.1074/jbc.272.38.23503. PMID 9295285.
  • Müller S, Goletz S, Packer N, et al. (1997). "Localization of O-glycosylation sites on glycopeptide fragments from lactation-associated MUC1. All putative sites within the tandem repeat are glycosylation targets in vivo". J. Biol. Chem. 272 (40): 24780–93. doi:10.1074/jbc.272.40.24780. PMID 9312074.
  • Röttger S, White J, Wandall HH, et al. (1998). "Localization of three human polypeptide GalNAc-transferases in HeLa cells suggests initiation of O-linked glycosylation throughout the Golgi apparatus". J. Cell Sci. 111 (1): 45–60. doi:10.1242/jcs.111.1.45. PMID 9394011.
  • Mattu TS, Pleass RJ, Willis AC, et al. (1998). "The glycosylation and structure of human serum IgA1, Fab, and Fc regions and the role of N-glycosylation on Fc alpha receptor interactions". J. Biol. Chem. 273 (4): 2260–72. doi:10.1074/jbc.273.4.2260. PMID 9442070.
  • Iwasaki H, Zhang Y, Tachibana K, et al. (2003). "Initiation of O-glycan synthesis in IgA1 hinge region is determined by a single enzyme, UDP-N-acetyl-alpha-D-galactosamine:polypeptide N-acetylgalactosaminyltransferase 2". J. Biol. Chem. 278 (8): 5613–21. doi:10.1074/jbc.M211097200. PMID 12438318.
  • Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. Bibcode:2002PNAS...9916899M. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
  • Marcos NT, Cruz A, Silva F, et al. (2003). "Polypeptide GalNAc-transferases, ST6GalNAc-transferase I, and ST3Gal-transferase I expression in gastric carcinoma cell lines". J. Histochem. Cytochem. 51 (6): 761–71. doi:10.1177/002215540305100607. PMID 12754287. S2CID 16133163.
  • Kinarsky L, Suryanarayanan G, Prakash O, et al. (2004). "Conformational studies on the MUC1 tandem repeat glycopeptides: implication for the enzymatic O-glycosylation of the mucin protein core". Glycobiology. 13 (12): 929–39. doi:10.1093/glycob/cwg109. PMID 12925576.
  • Ota T, Suzuki Y, Nishikawa T, et al. (2004). "Complete sequencing and characterization of 21,243 full-length human cDNAs". Nat. Genet. 36 (1): 40–5. doi:10.1038/ng1285. PMID 14702039.
  • Gerhard DS, Wagner L, Feingold EA, et al. (2004). "The Status, Quality, and Expansion of the NIH Full-Length cDNA Project: The Mammalian Gene Collection (MGC)". Genome Res. 14 (10B): 2121–7. doi:10.1101/gr.2596504. PMC 528928. PMID 15489334.
  • Gregory SG, Barlow KF, McLay KE, et al. (2006). "The DNA sequence and biological annotation of human chromosome 1". Nature. 441 (7091): 315–21. Bibcode:2006Natur.441..315G. doi:10.1038/nature04727. PMID 16710414.
  • v
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  • 2ffu: Crystal Structure of Human ppGalNAcT-2 complexed with UDP and EA2
    2ffu: Crystal Structure of Human ppGalNAcT-2 complexed with UDP and EA2
  • 2ffv: Human ppGalNAcT-2 complexed with manganese and UDP
    2ffv: Human ppGalNAcT-2 complexed with manganese and UDP


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